Anchor bolt structure with supporting member



1956 A. R. HILL 2,765,134

ANCHOR BOLT STRUCTURE WITH SUPPORTING MEMBER Filed Oct. 9, 1955 INVENTOR.

AQTHUQ. R. H s LL.

AjrToQNEYS United States Patent ANCHOR BOLT STRUCTURE WITH SUPPORTINGlJIEMBER Arthur R. Hill, Douglas, Wyo.

Application October 9, 1953, Serial No. 385,173

1 Claim. (Cl. 248-29) This invention relates to improvements in anchorbolt structure for mounting such as pictures, wall brackets, and anyother mountings, on plaster lath and like walls, and the primary objectof the invention is to provide a more practical, reliable, and eflicientdevice of this kind which can be installed through a hole in a wall withgreater accuracy as to position, and without marring the exposed surfaceof the wall, and which will not ordinarily become loosened in the wallhole but can be easily tightened without marring the exposed surface ofthe wall.

Another important object of the invention will be apparent from thefollowing description and the accompanying drawings, wherein, forpurposes of illustration rather than limitation, a specific form of theinvention is set forth in detail.

In the drawings:

Figure 1 is a fragmentary perspective view partly broken away, showingan installation in accordance with the invention;

Figure 2 is an enlarged fragmentary transverse vertical section taken onthe line 2--2 of Figure 1;

Figure 3 is a view similar to Figure 1, showing the illustrated anchorbolt device installed for hanging a picture or the like;

Figure 4 is a View similar to Figure 3, showing the device in apreliminary stage of installation; and

Figure 5 is an exploded view of the said device.

Referring in detail to the drawings, wherein like numerals designatelike parts throughout the several views, the illustrated anchor boltstructure or device, which is generally designated 7, comprises ananchor bar 8, a headed sleeve 9, a positioning wire 10, a screw 11, anda wrench 12 which can also serve as mounting means for a picture or thelike.

The anchor bar 8 is preferably a piece of half-round stock having a flatside 13 for engaging the rear side 14 of a wall panel 15 through which ahole 16 has been made, with the anchor bar 8 extending across the hole16, the anchor bar 8 being substantially longer than the diameter of thehole 16, and provided with a central threaded hole 17 bevelled at itsrearward end, as indicated at 17 The headed sleeve 9 comprises a tubularexternally threaded part 18 preferably smaller in diameter than the wallhole 16, and perrnissibly somewhat shorter than the width of the wallpanel 15, although the tube 18 can be longer. On one end of the tube 18is fixed a concentric solid cylindrical head 19 of substantially thesame diameter as the hole 16 and adapted to have a plug fit therein, asparticularly well shown in Figure 2 of the drawings. The head 19 has alateral annular flange 20 on its outer end which is arranged to engagethe exposed surface 21 of the wall panel 15.

The flange 20 is provided in its peripheral edge with diametricallyopposed rounded notches 22, 22 for a purpose hereinafter disclosed.

The positioning wire 10 comprises a length 23 of 2,765,134 Patented Oct.2, 1956 flexible wire having fixed on one end thereof the disc stop orabutment 24 whose peripheral edge is bevelled on its outer or frontside, as indicated at 25. The disc 24 is slightly larger in diameterthan the threaded hole 17 of the anchor bar 8 and arranged so that thebevelled side 25 seats in the bevelled end 17 of the threaded hold 17whereby the disc 24 has a positioning purchase upon the anchor bar 8, ina manner and for a purpose hereinafter explained.

The screw 11 has a threaded shank 26 and a rounded slotted head 27, theshank 26 being arranged .to be threaded into or through a centralthreaded bore 28 extending through the sleeve head 19. The screw 11 isadapted to be passed through an opening provided in an object to bemounted on the wall panel 15 or suspension means for such object can beinstead hung over the screw behind its head 27.

The wrench 12 comprises an elongated rectangular body having a flatouter side 29 and an inner side 30 which has a flat central portion 31and longitudinally vertically bevelled or tapered end portions 32, 32.The wrench is provided with a smooth central hole 33 therethrough inwhich the shank 26 of the screw 11 can freely turn, the hole 33 beingsmaller than the screw head 27, so that the screw head 27 can betightened against the outer side 29 of the wrench 12 for holding thewrench 12 in an object supporting position, such as is exemplified inFigures 1 and 2 of the drawings. The wrench has on the intermediateportion 31 of its inner side 38, two longitudinally spaced anddiametrically opposed pieces 34, 34 which fit the notches 22, 22 in theflange 20 on the head 19 of the sleeve 9, for a purpose hereinafterexplained, as well as for preventing rotary shifting of the wrench 12when installed as shown in Figures 1 and 2. The pins 34, 34 are shorterthan the thickness of the head flange 20 so that the free ends of thepins will not reach behind the head flange 20 and mar the wall panelsurface 21.

The above described device is installed as follows:

The anchor bar 8, with the wire length 23 extending through its threadedhole 17 and the disc 24 engaged with the rear end of the hole 17, ispushed rearwardly through the wall panel hole 16 until the anchor bar 8goes behind the wall panel 15. Thereupon the wire length 23 is pulledforwardly so as to seat the disc 24 in the anchor bar hole 17, positionthe anchor bar 3 across the wall hole 16 at the rear side of the wallpanel 15, and the wire length is held to maintain this position of theanchor bar 8.

The headed sleeve 9 is then passed over the wire length 23 into the wallhole 16 and engaged with the anchor bar hole 17 and threaded therein byrotating the head by means of the wrench 12, the pins 34, 34 beingengaged in the head flange notches 22, 22, until the head flange 20 istightened against the exposed surface of the wall panel 15. At thispoint the wire 10 is pushed through the sleeve 9 and dropped behind thewall panel 15 by pushing the wire rearwardly through the bore of thesleeve 9.

The screw 11 is then threaded into the threaded bore 23 of the sleevehead 19 as far as necessary, either to provide a nail for hanging anobject or to clamp an object between the screw head 27 and the outer endof the sleeve head 19.

Optionally, the wrench 12 can be clamped in place at the outer end ofthe sleeve head 19 by passing the screw 11 through the hole 33 of thewrench 12 and tightening the screw head 27 thereagainst.

What is claimed is:

In an anchor bolt device, an anchor bar adapted to engage the rear sideof a wall panel and to extend across a hole provided through the wallpanel, said anchor bar having a central threaded hole, a headed sleevecomprising a head fitting the wall hole and a reduced diameterexternally threaded tube extending rearwardly from said head through thewall hole, said tube having a rear end threaded in the hole of theanchor bar, said head having 'a lateral flange engaging the front of thewall, said head flange having circumferentially spaced notches, anarticle supporting member cernprising an elongated body having a centralhole therethrough, and spaced pinson said body engaging the head flangenotches for rotating the headed sleeve fer threading said tube into thethreaded hole in the anchor bar, the bore in the sleeve head beingthreaded, and a screw having a shank extending through the hole of saidmember and threaded in the threaded bore of the head and a head bearingagainst the outer side of said member.

References Cited in the file of this patent UNITED STATES PATENTS 63,497Frank Apr. 2, 1867 1,623,789 7 Hubener Apr. 5, 1927 1,967,039 Mohr July17, 1934 2,301,135 Molat Nov. 3, 1942 2,632,354 Black Mar. 24, 1953

